Ding Sihan

Biodata

Feature	Information
Name	Ding Sihan (丁思涵)
Alias(es)	Dingzi; Ding Ding; Little Ding; Ah Ding
Gender	Female
Affiliation	Class Four; member of the group chat Three People and a Dog
Occupation/Role	Student; web novelist 286

Appearance

Ding Sihan favors expressive, activity-appropriate outfits. For a live-ammunition shooting outing, she wore an oversized black tactical jacket over a white T-shirt, black leather pants, black high-top shoes, goggles, gloves, and a ponytail. The look was described as cool, heroic, and sassy 244 246.

• Often experiments with makeup and takes selfies with Chen Yuying 101 102.
• Has worn white socks during a group cooking outing 191.
• Selected a coordinated “couple’s outfit” for an outing with Lin Li, prompting one of their usual arguments 434.

Personality

Ding Sihan is outspoken, competitive, and quick to meet Lin Li’s absurdity with sarcasm or threats of violence. She does not let his teasing pass unanswered: she has threatened him after being embarrassed, chased him with a kitchen knife in hand, and repeatedly kicked him when his jokes crossed her limits 103 190 310.

Her bluntness is balanced by a playful willingness to engage. She trades wordplay with Lin Li, joins group games and outings, and even studies his “long, difficult sentences” in an attempt to learn his style of banter—though her notes turn out to be drawings of two snarling dogs 312 377.

She is also attentive to her friends. Ding Sihan photographs candid moments between Lin Li and Chen Yuying, buys gifts for friends, and remains invested in Chen Yuying’s relationship with Lin Li even while complaining about being left out 108 470 427.

Interests & Skills

Photography and Image Editing

Ding Sihan frequently documents her friends’ outings and candid interactions.

• Secretly photographed Chen Yuying and Lin Li rather than creating a separate photo-sharing group 100.
• Captured Lin Li practicing at dawn while Chen Yuying brought him water, considering the scene perfect 108.
• Recorded Chen Yuying placing leaves on Lin Li and mourned when Chen Yuying deleted the original video from her phone 139.
• Posted or participated in posting edited images of Lin Li on WeChat Moments with Qu Wanqiu 130.

Writing

Lin Li refers to Ding Sihan as his web novelist and keeps her notebook safe when she does not deliver a new chapter 286.

Games and Competitive Play

Ding Sihan participates enthusiastically in games but reacts poorly to losses.

• Lost an Identity V match and blamed her old phone and poor network connection 311.
• Played mobile games and challenged Lin Li’s character choices, especially when he jokingly chose a support character without promising to protect her 312.
• Competed with Lin Li in a jump-rope event, which he won 231.

Shopping and Food Choices

Ding Sihan follows livestream deals and is treated by her friends as a reliable person to consult about food orders.

• Watches product-recommendation livestreams while waiting for discounts 143.
• Is known for ordering widely when eating out; her choices rarely disappoint, even if others end up eating much of what she orders 331.
• Persisted in buying an expensive badge as a gift for a friend at the Garden Party flea market 470.

Relationships

• Chen Yuying — Close friend and frequent companion. Ding Sihan teases Chen Yuying about Lin Li, but also photographs their moments together and supports her happiness 100 108 337.
• Lin Li — Friend, rival, and primary target of her banter. Their relationship runs on mutual mockery, competitions, chases, and occasional cooperation; she also regards him as someone capable of helping others 101 135 435.
• Qu Wanqiu — Close friend and fellow observer of Lin Li and Chen Yuying’s relationship. The two play cards, share WeChat Moments, and often join the same outings 130 337.
• Bai Bufan — Friend and fellow participant in the group’s teasing. Ding Sihan successfully jokes about his wish for an Iron Man suit, earning Lin Li’s approval 435.
• Wang Ze — Classmate with a hostile comedic dynamic. After he insulted her appearance, Ding Sihan used Lin Li’s suggested comeback against him 101.

Story Role / Major Arcs

Makeup Trip and School Excursion

Ding Sihan joins Chen Yuying and Lin Li during their trip, taking secret photos and joining their makeup session. She asks Lin Li for his honest opinion of her makeup, only to receive a blunt negative answer; later, she uses his taught comeback against Wang Ze after Wang Ze insults her 100 101.

Her resentment toward Lin Li continues through the excursion after he embarrasses her, though their dynamic soon returns to jokes, threats, and reluctant reconciliation 103 104.

Haunted House and Autumn Excursion

During the haunted-house visit, fear leads Ding Sihan and Qu Wanqiu to grab Lin Li and Chen Yuying. When Lin Li goes missing, she accompanies Chen Yuying in returning to look for him 118.

On the Autumn Excursion, she allows Lin Li to carry her crossbody bag without ceremony, calling him a lackey while acknowledging that he should help carry it 132. She later joins him in gathering wild persimmons and receives his promise to bring one for Qu Wanqiu 135.

Growing Three-Person Dynamic

Ding Sihan becomes a regular part of outings with Lin Li and Chen Yuying, including picnics, games, photos, films, and dinners. She is frequently the one to challenge Lin Li’s boasting, bad jokes, and attempts to impress Chen Yuying 312 313.

After Chen Yuying unexpectedly hugs Lin Li, Ding Sihan walks home with him, mocks his failure to return the hug properly, and keeps him company longer because she wants to hear the rest of the story 314.

Observer of Lin Li and Chen Yuying’s Romance

Ding Sihan regularly notices and exposes moments of intimacy between Lin Li and Chen Yuying.

• She discovers them holding hands beneath a desk during a school power outage 383.
• She demands breakfast in exchange for keeping the discovery from their teacher, while Chen Yuying offers to pay instead 384.
• She and Qu Wanqiu tease the couple over Christmas Eve gifts and their growing closeness 451.
• When Lin Li and Chen Yuying go out alone, she calls them in the group chat to ask what they are doing, only for Lin Li to taunt her about being left behind 420.

Interest in Dating

After repeatedly witnessing Lin Li and Chen Yuying’s relationship, Ding Sihan begins considering dating herself. She asks Lin Li to help find her a boyfriend so she will have her own time alone, but Lin Li refuses on the grounds that none of the men he knows deserve her 427.